C37710

C37710 is a free machining forging brass alloy known for good forgeability, corrosion resistance, and moderate strength. It is composed mainly of copper, zinc, and lead with small amounts of iron and other trace elements.

Chemical Composition

• Copper (Cu): 56.5% to 60.0%

• Lead (Pb): 1.0% to 3.0%

• Iron (Fe): Up to 0.30%

• Total Others: Maximum 0.50%

• Zinc (Zn): Remainder (Balance)

Mechanical Properties

• Mechanical properties are established by agreement between manufacturer and purchaser.

• Tensile strength and elongation values vary depending on the manufacturing process and temper.

Physical Properties

• Melting Point: Liquidus around 1640°F (893°C), Solidus around 1620°F (882°C)

• Density: Approximately 8.44 g/cm³

• Electrical Conductivity: Roughly 27% IACS

• Thermal Conductivity: About 69 BTU/ft²/hr/°F

• Coefficient of Thermal Expansion: Around 11.5 x 10⁻⁶ per °F

• Modulus of Elasticity: Approximately 15,000 ksi

• Modulus of Rigidity: About 5,600 ksi

Fabrication Properties

• Excellent solderability and good brazability

• Welding is generally not recommended except for butt welding

• The capacity for cold working is poor, but it has excellent hot formability

• Forgability rating is 100

• Machinability rating is approximately 80%

Typical Applications

• Builders hardware

• Electrical fittings

• Plumbing parts

• Industrial machinery components

• Consumer goods